Bug 27029: Add data-biblionumber attribute to OPAC detail page
This patch adds a data-biblionumber attribute to the
div#catalogue_detail_biblio elements on opac-detail.pl, so that
Javascript running on the page can easily fetch and use the
record's biblionumber.
Signed-off-by: Mark Hofstetter <mark@hofstetter.at>, <koha@trust-box.at> Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>